Octane reacts with sulfur dioxide and oxygen, then refine and obtain finished product.

For further information, see:

United States Patent 4,643,813 Process for producing alkanesulfonic acids,

United States Patent 4,680,147 Process for the isolation under mild conditions of paraffinsulfonate and sulfuric acid from reaction mixtures from paraffin sulfoxidation,

United States Patent 4,798,915 Process for the extraction of paraffins from mixtures thereof with alkane-sulfonic acids,

United States Patent 4,808,343 Process for isolating paraffinsulfonates with a low alkali metal sulfate content and sulfuric acid from paraffin-sulfoxidation reaction mixtures without obligatory production of sodium sulfate,

United States Patent 4,827,078 Process for extracting paraffins from their mixtures with alkanesulfonic acids,

United States Patent 4,843,184 Process for extracting paraffins from their mixtures with paraffinsulfonic acids,